Police would often assume construction was taking place and divert traffic away from the area.
Any measure that would divert traffic to the south side of the tracks was welcome.
It was constructed in the 1960s to divert traffic from through the city centre.
Between 1996 and 1998 a new bypass completely diverted traffic away from the town centre.
Work was performed on one tunnel at a time, with traffic diverted through the other gallery.
Once again, the police maintained their distance, diverting traffic around the demonstration.
In 1931 the current routes 23 and 9H were constructed, diverting traffic away from the bridge.
And close the major road on the other side and permanently divert traffic.
A new bridge was built on the Boyne in the 1980s to divert heavy traffic from the town.
Three fire appliances brought the blaze under control as police diverted traffic from roads near the scene.
